Results 111 to 120 of about 82,055 (340)

Electrodeposition from supercritical fluids

open access: yes, 2014
Recent studies have shown that it is possible to electrodeposit a range of materials, such as Cu, Ag and Ge, from various supercritical fluids, including hydrofluorocarbons and mixtures of CO2 with suitable co-solvents. In this perspective we discuss the
Bartlett, P.   +8 more
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

Resolving nanoparticle collision reactivity via simultaneous current and fluorescence detection

open access: yesElectrochemistry Communications
Operando analysis enables real-time monitoring of chemical processes, with spectroelectrochemical methods offering direct mechanistic insight. Here, we present an electrochemical-fluorescence approach that couples time-resolved fluorescence detection ...
Hyeong Seok Yu, Donghoon Han
doaj   +1 more source

Wide-profile continuous current converters with extended range for monitoring and control systems in the power industry [PDF]

open access: yesE3S Web of Conferences
The article demonstrates that in industries such as electrochemistry, rolling mills, railway transport, and agriculture, the presence of significant power losses on shunts and the inability to break current conductors during technological processes have ...
Plaxtiyev A. M.   +4 more
doaj   +1 more source

Design of sustainable energy systems : a new challenge for Engineering Education [PDF]

open access: yes, 2008
This paper presents the main features of the master-level programme in “EcoEnergy” offered as a full-time one year course at “Institut National Polytechnique of Toulouse” in order to provide engineers with a state-of-the-art education in the area of ...
Astier, Stéphan   +2 more
core  

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

Tratamento de resíduos de corante por eletrofloculação: um experimento para cursos de graduação em química

open access: yesQuímica Nova, 2011
This paper describes the use of a simple experiment of electroflocculation for classroom in Chemistry. Parameters such as electrode material, current density and temperature direct influence the process efficiency.
Sidney de Aquino Neto   +3 more
doaj   +1 more source

Direct Electrochemistry of Metalloproteins Immobilized on a Gold Nanoparticle-Modified Electrode [PDF]

open access: bronze, 2008
Kazuki Kajiya   +4 more
openalex   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

open access: yesAdvanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing   +9 more
wiley   +1 more source

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